Clamping sleeve straight-through ball valve

Abstract

The utility model discloses a clamping sleeve straight-through ball valve which comprises a valve body and is characterized in that a first abutting column and a second abutting column are arranged at the inlet end and the outlet end of the two sides of the valve body respectively, and a first nut and a second nut are arranged on the first abutting column and the second abutting column in a screwed mode respectively. A first clamping sleeve arranged on the periphery of the first abutting column in a sleeving mode is formed between the first nut and the valve body, a second clamping sleeve symmetrical to the second clamping sleeve assembly is formed between the second nut and the valve body, one end of the first clamping sleeve is clamped on the valve body, and the other end of the first clamping sleeve is clamped in the first nut in a sliding mode. One end of the second clamping sleeve is clamped on the valve body, and the other end of the second clamping sleeve slides in the second nut in a clamped mode. The clamping sleeve straight-through ball valve can prevent the stud portion of the valve body connector from being exposed outside, prevent the stud portion from being rusted and oxidized, and facilitate later replacement and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe joints, in particular to a sleeve straight-through ball valve. Background Art

[0002] The ferrule type pipe fitting is a sealing pipe fitting suitable for non-corrosive or corrosive media such as oil, water, and gas. The specification requirements for the aluminum-plastic pipe are relatively flexible. After being connected to the pipeline, it has the characteristics of reliable connection and good sealing performance. It is suitable for hydraulic transmission pipelines such as various mechanical engineering, machine tools and equipment. The existing three-way ferrule type pipe fitting connection method is to use locking nuts and threaded pipe fittings to press the pipe to the pipe fitting for connection. After the connection, the stud part of the joint body will be exposed, which is easy to cause rust and oxidation for a long time. It is very laborious to disassemble, which affects the later maintenance and replacement. Utility Model Content

[0003] The utility model aims to provide a ferrule straight-through ball valve, which can prevent the stud part of the valve body joint from being exposed to the outside, prevent the stud part from rusting and oxidation, and facilitate later replacement and maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sleeve straight-through ball valve, including a valve body, characterized in that: a first abutment column and a second abutment column are respectively arranged on the inlet end and the outlet end on both sides of the valve body, a first nut and a second nut are respectively screwed on the first abutment column and the second abutment column, a first sleeve is formed between the first nut and the valve body and is sleeved on the outer periphery of the first abutment column, a second sleeve is formed between the second nut and the valve body and is symmetrically arranged with the second sleeve assembly, one end of the first sleeve is clamped on the valve body, and the other end is clamped and slidably arranged in the first nut, one end of the second sleeve is clamped on the valve body, and the other end is clamped and slidably arranged in the second nut.

[0005] Preferably, the first ferrule is provided with positioning protrusions in an annular array on one side facing the valve body, and the valve body is provided with plug-in through holes matched with the positioning protrusions.

[0006] Preferably, a corresponding positioning slide block is provided on the side of the positioning protrusion facing the first nut, and a gap is provided between the positioning slide block and the positioning protrusion.

[0007] Preferably, a first clearance opening extending to the positioning slide block is provided in the middle of the positioning protrusion, and a first inclined surface is provided on the side of the positioning protrusion facing the valve body, and the first inclined surface is provided in a gradually shrinking state toward the side of the valve body.

[0008] Preferably, a threaded outer wall is provided on the first ferrule at one side of the positioning slide block, a hexagonal screw cap matched with the threaded outer wall is sleeved on the first ferrule, and a sealing gasket is clamped between the hexagonal screw cap and the valve body.

[0009] Preferably, abutment protrusions are arranged in an annular array on one side of the first ferrule facing the first nut, a sliding groove matched with the abutment protrusion is provided on the first nut, and a convex edge is provided on the opening of the sliding groove.

[0010] Preferably, a second clearance opening is provided in the middle of the abutting protrusion, and a second inclined surface is provided on the abutting protrusion.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the first ferrule and the second ferrule are respectively sleeved on the first abutting column and the second abutting column on both sides of the valve body, and at the same time, one end of the first ferrule and the second ferrule are respectively clamped on the valve body to form a positioning, and the other end is clamped with the first nut and the second nut to form on the outer peripheral surface of the first abutting column and the second abutting column, which plays a protective role and prevents the first abutting column and the second abutting column from being corroded by dust, water stains, etc. At the same time, the first nut and the second nut are displaced by using the sliding groove while rotating, which does not affect the tightening operation of the first nut and the second nut, and can avoid the stud part of the valve body joint from being exposed to the outside, prevent the stud part from rusting and oxidation, and facilitate later replacement and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional view of the overall structure of the utility model;

[0013] Figure 2 It is an enlarged view of part A of the utility model;

[0014] Figure 3 It is an exploded view of the first ferrule and the hexagonal screw cap of the utility model.

[0015] In the figure: 1, inlet end; 2, outlet end; 3, first abutment column; 4, second abutment column; 5, first nut; 8, second nut; 9, first ferrule; 10, second ferrule; 11, positioning protrusion; 12, plug-in through hole; 13, positioning slider; 14, gap; 15, first clearance opening; 16, first inclined surface; 17, threaded outer wall; 18, hexagonal screw cap; 19, sealing gasket; 20, abutment protrusion; 21, sliding groove; 23, convex edge; 24, second clearance opening; 25, second inclined surface; 26, valve body. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example: As attached Figures 1 to 3 A sleeve straight-through ball valve shown in the figure comprises a valve body 26, wherein a first abutting column 3 and a second abutting column 4 (being an integral structure and having threads on the outer ring) are respectively arranged on the inlet end 1 and the outlet end 2 on both sides of the valve body 26, a first nut 5 and a second nut 8 are respectively screwed on the first abutting column 3 and the second abutting column 4, a first sleeve 9 (specifically made of plastic material) sleeved on the outer periphery of the first abutting column 3 is formed between the first nut 5 and the valve body 26, a second sleeve 10 (specifically made of plastic material) symmetrically arranged with the second sleeve 10 assembly is formed between the second nut 8 and the valve body 26, one end of the first sleeve 9 is clamped on the valve body 26, and the other end extends and is clamped in the first nut 5, one end of the second sleeve 10 is clamped on the valve body 26, and the other end It extends and clamps in the second nut 8, and the first ferrule 9 and the second ferrule 10 are respectively sleeved on the first abutting column 3 and the second abutting column 4 on both sides of the valve body 26. At the same time, one end of the first ferrule 9 and the second ferrule 10 are respectively clamped on the valve body 26 to form a positioning, and the other end is clamped with the first nut 5 and the second nut 8 to form on the outer peripheral surface of the first abutting column 3 and the second abutting column 4, which plays a protective role to prevent dust, water stains and the like from corroding the first abutting column 3 and the second abutting column 4. At the same time, the first nut 5 and the second nut 8 are displaced by the sliding groove 21 while rotating, which does not affect the tightening operation of the first nut 5 and the second nut 8, and can avoid the stud part of the valve body 26 joint from being exposed to the outside, prevent the stud part from rusting and oxidation, and facilitate later replacement and maintenance.

[0018] As attached Figure 3 As shown, the first ferrule 9 is provided with positioning protrusions 11 (an integrated structure, specifically four of them) in a circular array on one side facing the valve body 26, and the valve body 26 is provided with plug-in holes 12 that are compatible with the positioning protrusions 11. During installation, the positioning protrusions 11 are snapped into the plug-in holes 12 to limit and fix one side of the first ferrule 9 (the second ferrule 10 adopts the same installation structure).

[0019] As attached Figure 3As shown, a corresponding positioning slider 13 (an integrated structure, specifically four corresponding to the positioning slider 11) is provided on the side of the positioning protrusion 11 facing the first nut 5, and a gap 14 is provided between the positioning slider 13 and the positioning protrusion 11. The provided positioning slider 13 plays a supporting role to prevent the positioning protrusion 11 from being broken due to a large pressure, and the provided gap 14 is used for clamping to form a better fixing effect (the second ferrule 10 adopts the same installation structure).

[0020] As attached Figure 3 As shown, a first clearance opening 15 extending to the positioning slider 13 is provided in the middle of the positioning protrusion 11, and a first inclined surface 16 is provided on the side of the positioning protrusion 11 facing the valve body 26. The first inclined surface 16 is arranged in a gradually shrinking state toward the side of the valve body 26. The first clearance opening 15 is provided to play a role of inward contraction and clearance when the positioning protrusion 11 is engaged with the plug-in through hole 12, and the contraction pressure is released after entering the plug-in through hole 12 to return to the original position to form a clamping connection (the second ferrule 10 adopts the same installation structure setting).

[0021] As attached Figure 3 As shown, a threaded outer wall 17 is provided on the first ferrule 9 at one side of the positioning slider 13, and a hexagonal screw cap 18 matched with the threaded outer wall 17 is sleeved on the first ferrule 9. A sealing gasket 19 is clamped between the hexagonal screw cap 18 and the valve body 26. The sealing gasket 19 (specifically made of rubber material) clamped between the hexagonal screw cap 18 and the valve body 26 can improve the sealing performance and prevent rust caused by the entry of water stains (the second ferrule 10 adopts the same installation structure).

[0022] As attached Figure 3 As shown, the first ferrule 9 is provided with abutment protrusions 20 (an integrated structure) in a circular array on the side facing the first nut 5, and the first nut 5 is provided with a sliding groove 21 adapted to the abutment protrusion 20, and the sliding groove 21 is provided with a convex edge 23 (an integrated structure) at the opening thereof. After the abutment protrusion 20 is inserted into the sliding groove 21, the first nut 5 can slide while being tightened, and the convex edge 23 is used for limiting clamping to prevent the first nut 5 from falling off (the second ferrule 10 adopts the same installation structure setting).

[0023] As attached Figure 3 As shown, a second clearance opening 24 is provided in the middle of the abutting protrusion 20, and a second inclined surface 25 is provided on the abutting protrusion 20. The second inclined surface 25 is convenient for installation, and the second clearance opening 24 can avoid the difficulty of plugging during installation.

[0024] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention.

Claims

1. A ferrule straight-through ball valve, comprising a valve body (26), characterized in that: A first abutting column (3) and a second abutting column (4) are respectively arranged on the inlet end (1) and the outlet end (2) on both sides of the valve body (26); a first nut (5) and a second nut (8) are respectively screwed on the first abutting column (3) and the second abutting column (4); a first clamping sleeve (9) sleeved on the outer periphery of the first abutting column (3) is formed between the first nut (5) and the valve body (26); a second clamping sleeve (10) symmetrically arranged with the second clamping sleeve (10) component is formed between the second nut (8) and the valve body (26); one end of the first clamping sleeve (9) is clamped on the valve body (26), and the other end is clamped and slidably arranged in the first nut (5); one end of the second clamping sleeve (10) is clamped on the valve body (26), and the other end is clamped and slidably arranged in the second nut (8); 2. A sleeve straight-through ball valve according to claim 1, characterized in that: The first ferrule (9) is provided with positioning protrusions (11) in an annular array on one side facing the valve body (26), and the valve body (26) is provided with plug-in through holes (12) that match the positioning protrusions (11).

3. A sleeve straight-through ball valve according to claim 2, characterized in that: A corresponding positioning slide block (13) is provided on the side of the positioning protrusion (11) facing the first nut (5), and a gap (14) is provided between the positioning slide block (13) and the positioning protrusion (11).

4. A sleeve straight-through ball valve according to claim 3, characterized in that: A first clearance opening (15) extending to the positioning slide block (13) is provided in the middle of the positioning protrusion (11), and a first inclined surface (16) is provided on the side of the positioning protrusion (11) facing the valve body (26), and the first inclined surface (16) is provided in a gradually shrinking state towards the side of the valve body (26).

5. A sleeve straight-through ball valve according to claim 4, characterized in that: A threaded outer wall (17) is provided on the first clamping sleeve (9) at one side of the positioning slide block (13), a hexagonal screw cap (18) matching the threaded outer wall (17) is sleeved on the first clamping sleeve (9), and a sealing gasket (19) is clamped between the hexagonal screw cap (18) and the valve body (26).

6. A ferrule straight-through ball valve according to claim 5, characterized in that: The first ferrule (9) is provided with abutment protrusions (20) in a circular array on one side facing the first nut (5), the first nut (5) is provided with a sliding groove (21) adapted to the abutment protrusions (20), and a convex edge (23) is provided at the front opening of the sliding groove (21).

7. A sleeve straight-through ball valve according to claim 6, characterized in that: A second clearance opening (24) is provided in the middle of the abutting convex portion (20), and a second inclined surface (25) is provided on the abutting convex portion (20).

Images